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Camouflaging of seeds treated with pesticides mitigates the mortality of wild birds in wheat and rice crops Scientia Agricola
Almeida,Alexandre de; Couto,Hilton Thadeu Zarate do; Almeida,Álvaro Fernando de.
Seeds used to plant wheat, corn and rice crops in Brazil are treated with the insecticide carbofuran associated with the dye rhodamine B, attracting granivorous birds and causing mortality during sowing. The objective of this study was to evaluate if using camouflaged seeds can minimize mortality caused by the ingestion of seeds with carbofuran. Alternatives for reducing mortality, such as using carbofuran without rhodamine B or replacing carbofuran by carbosulfan, were compared. Three experiments were carried out in regions of known bird mortality in the states of Paraná and São Paulo, Brazil, using conventional sowing over plowed soil in the traditional planting system, 15,896 kg of seeds in 111.46 ha. Bird carcasses were collected and dissected to...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Zenaida auriculata; Carbofuran; Rhodamine B; Carbosulfan; Gustatory repellents; Environmental impact.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162010000200008
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Comparison of the Oxygen Diffusing Capacity of the Picui Ground Dove (Columbina picui) with Other Doves of Chile International Journal of Morphology
Alfaro,; Figueroa Perez,Daniela; Sabat K,Pablo; Sallaberry,Michel; Canals L,Mauricio.
We studied the respiratory surface density and the thickness of the air-blood barrier in the Picui Ground Dove (Columbina picui), and compared it with Eared Dove (Zenaida auriculata) and Blacked-winged Ground Dove (Metropelia melanoptera), two larger species. As expected, Columbina picui BMR and VO2max showed higher values than those of the larger species according to the expected for their body size. The respiratory surface density and the thickness of the blood-air barrier were not different among the different species of doves. However C. picui showed an anatomical diffusion factor lower than M. melanoptera and Z. auriculata. Picui Ground Dove had low values of oxygen diffusion capacity, such as cursorial birds. A differential oxygen partial pressure of...
Tipo: Journal article Palavras-chave: Picui ground gove; Columbina picui; Metropelia melanoptera; Zenaida auriculata; Oxygen diffusing.
Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022010000100018
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Ecological partitioning of three Columbidae species in Northern Paraná, Southern Brazil Biota Neotropica
Fontoura,Priscila Montes; Orsi,Mário Luis.
Three species of Columbidae (Columbina talpacoti,Columbina picui and Zenaida auriculata) were studied in Londrina, Northern Paraná (Brazil), with the aim of analyzing which foraging and habitat factors contribute to their ecological partitioning. The study was conducted over one year in three different areas (urban, rural and pasture). We made monthly observations of the foraging strategies used by the species and the habitats they selected. Possible variations in availability of resources over the twelve months of the study did not influence the type of foraging used by the three species. Significant differences between the foraging strategies used by the species were observed in relation to the foraging site, specifically the foraging substrate. Soil,...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Columbina picui; Columbina talpacoti; Foraging strategies; Habitat selection; Zenaida auriculata.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000300044
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Uso diferencial de lotes agrícolas y ganaderos por aves terrestres en la Región Pampeana, Argentina Hornero
Zufiaurre,Emmanuel; Codesido,Mariano; Abba,Agustín M; Bilenca,David.
En las últimas décadas, los agroecosistemas de la Región Pampeana en Argentina han sido objeto de cambios en los patrones de uso de la tierra caracterizados por la expansión de la agricultura en detrimento de pastizales y pasturas. Como resultado de la amplia adopción de la práctica de siembra directa, luego de la cosecha se registran en algunas zonas extensas áreas cubiertas con rastrojos. El objetivo de este trabajo es describir el ensamble de aves terrestres y comparar la riqueza específica y la abundancia a nivel comunitario y gremial de lotes agrícolas y ganaderos durante dos períodos contrastantes del año en los cuales los lotes agrícolas se encuentran en rastrojo. Se seleccionaron 25 sitios que fueron visitados en cuatro oportunidades: dos veces en...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Abundancia; Agroecosistemas; Escala local; Gremio trófico; Rastrojo; Riqueza específica; Uso de la tierra; Zenaida auriculata.
Ano: 2016 URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0073-34072016000100005
Registros recuperados: 4
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